Vascular embolization is a high-risk procedure. Complications may occur at any time during or after the procedure, and may include, but are not limited to, the following:
1. Postembolization syndrome
2. Foreign body reactions (i.e. pain, rash) necessitating medical intervention
3. Allergic reaction to contrast media
4. Infection necessitating medical intervention
5. Complications related to catheterization (e.g. hematoma at the site of entry, clot formation at the tip of the catheter and subsequent dislodgment, vasospasm and nerve and/or circulatory injuries, which may result in leg injury).
6. Undesirable reflux or passage of BEARING nsPVA Embolization Particles into arteries adjacent to the targeted lesion or through the lesion into other arteries or arterial beds.
7. Ischemia at an undesirable location
8. Incomplete occlusion of vascular beds or territories may give rise to the possibility of postprocedural hemorrhage, development of alternative vascular pathways, recanalization or recurrence of symptoms.
9. Vessel or lesion rupture and hemorrhage
10. Recurrent hemorrhage
11. Ischemic stroke or myocardial infarction
12. Death
13. Complications of misembolization include blindness, hearing loss, loss of smell, paralysis, pulmonary embolism and death